Figure 1.
The level of plasma NGAL in patients with non-ACO and ACO. *, P<0.05. There was a significant difference in plasma NGAL levels between ACO and non-ACO only in female (17.0±6.4 and 11.1±4.5 ng/mL, respectively). NGAL, neutrophil gelatinase-associated lipocalin; ACO, asthma-chronic obstructive pulmonary disease overlap.